GB1017698A - Stable aqueous formaldehyde solutions - Google Patents
Stable aqueous formaldehyde solutionsInfo
- Publication number
- GB1017698A GB1017698A GB3914562A GB3914562A GB1017698A GB 1017698 A GB1017698 A GB 1017698A GB 3914562 A GB3914562 A GB 3914562A GB 3914562 A GB3914562 A GB 3914562A GB 1017698 A GB1017698 A GB 1017698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aryls
- alkyl
- aqueous formaldehyde
- formaldehyde solutions
- stable aqueous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/86—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Aqueous formaldehyde solutions are stabilized by formoguanamine of the formula <FORM:1017698/C2/1> or its derivatives obtained by substituting the hydrogen atom on carbon No. 6 with an alkyl, alkylaryl, aryl, fully or partially hydrogenated aryls, anilino-alkyl, N-alkyl substituted anilino-alkyl or an aryl ortho-substituted with a guanamine radical, and/or by partially or completely substituting the hydrogen atoms of the amino groups with alkyls, aryls, substitute-aryls, fully or partially hydrogenated aryls, hydroxyls or hydroxyalkyls. The stabilizer is used in amounts from 0.01 to 5 parts by weight per 100 parts of solution. It may be added at 20 to 100 DEG C., and at a pH of from 3 to 5.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1883361 | 1961-10-18 | ||
IT972462 | 1962-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1017698A true GB1017698A (en) | 1966-01-19 |
Family
ID=26326266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3914562A Expired GB1017698A (en) | 1961-10-18 | 1962-10-16 | Stable aqueous formaldehyde solutions |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH420099A (en) |
DK (1) | DK104784C (en) |
ES (1) | ES282018A1 (en) |
GB (1) | GB1017698A (en) |
-
1962
- 1962-10-16 GB GB3914562A patent/GB1017698A/en not_active Expired
- 1962-10-17 ES ES282018A patent/ES282018A1/en not_active Expired
- 1962-10-17 CH CH1217862A patent/CH420099A/en unknown
- 1962-10-17 DK DK447162A patent/DK104784C/en active
Also Published As
Publication number | Publication date |
---|---|
CH420099A (en) | 1966-09-15 |
DK104784C (en) | 1966-07-04 |
ES282018A1 (en) | 1963-05-01 |
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